MaxPower's 331376XB includes 1 commercial mulching blade for many 22 in. cut Toro Recyclers. This blade replaces OEM #s 108-9764-03 and 131-4547-03. It measures 21-11/16 in. L and 2-1/4 in. W with a 7/16 in. center hole. Commercial mulching blades feature greater cutting surface for increased mulching performance, sharpened cutting teeth for a precision cut, and a centrifugal air lift design for uniform chopping distribution. To ensure proper fit, please verify the OEM # of the blade you are replacing matches the OEM # listed in this description. MaxPower blades are proudly manufactured in the USA to meet or exceed OEM specification.